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DENSO International America, Inc. and the University of Iowa-Operator Performance Laboratory (OPL) have developed a series of new Multi-Modal Interface for Drivers (MMID) in order to improve driver safety, comfort, convenience and connectivity. Three MMID concepts were developed: GUI 1, GUI 2 and GUI 1-HUD. All three of the MMIDs used a new Reconfigurable Haptic Joystick (RHJ) on the steering wheel and new concept HMI Dual Touch Function Switches (DTFS) device. The DTFS use capacitive and mechanic sensing located on the back of the steering wheel as input operation devices. Inputs from the new controls were combined with a large TFT LCD display in the instrument cluster, a Head Up Display (HUD) and Sound as output devices. The new MMID system was installed in a Lexus LS-430. The climate control panel and radio panels of the LS-430 were used as a baseline condition to which the new designs were compared.

The direct injection diesel engine system was developed to solve the problems of conventional diesel engine systems: emissions of PM (Particulate Matter) and high emissions of NOx (nitrogen oxides). The common rail pressure sensor is a key sensor in the system, which requires high-pressure resistance of 160MPa and accuracy of ±1%. This paper discusses our development of a new generation of common rail system high-pressure sensors that are structurally simpler than conventional sensors, while meeting the above requirements.